How to refer using FindObjectOfType| Error CS0201

Hi, I am a rookie in Unity gamdevelopement, and I need help on something.
Whilst watching one of Brackeys gamedev tutorial videos, I got stuck on the part where he referenced the PlayerCollider script with the GameManager script with the simple code:

FindObjectOfType<
GameManager>();

Inside of the GameManager script there was a public void method named EndGame (Since this video was dedicated to making a gameover scene). Brackeys added to the original code and made the product:

FindObjectOfType().EndGame;

Though, when I wrote this code (as shown below), it brought up the error CS0201: “Only assignment, call, increment, decrement, await, and new object expressions can be used in this statement”
this is my code:

using UnityEngine;

public class PlayerCollision : MonoBehaviour {

public PlayerMovement movement;

private void OnCollisionEnter(Collision other)
{
    if (other.collider.tag == "Obstacle")
    {
        movement.enabled = false;
        FindObjectOfType<Game_Manager>().EndGame;
    }
}

}

using UnityEngine;

public class Game_Manager : MonoBehaviour
{

public void EndGame()
{
    Debug.Log("Loser");
}

}

I looked a the video for help and what he had said (which I don’t understand) is “Of course, if you are using this code(FindObjectOfType) make sure that you have at least one object of the type you’re looking for, so just make sure you have GameManager in your scene.”

Thanks for your time. here is link to vid:GAME OVER - How to make a Video Game in Unity (E08) - YouTube

Heya,

When calling a method, make sure to put parenthesis at the end:

FindObjectOfType().EndGame();

Cheers!